```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Oracle数据库安装与使用指南</title>
    <link href="https://cdn.staticfile.org/font-awesome/6.4.0/css/all.min.css" rel="stylesheet">
    <link href="https://cdn.staticfile.org/tailwindcss/2.2.19/tailwind.min.css" rel="stylesheet">
    <link href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;700&display=swap" rel="stylesheet">
    <script src="https://cdn.jsdelivr.net/npm/mermaid@latest/dist/mermaid.min.js"></script>
    <style>
        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
            background-color: #f8fafc;
            color: #1e293b;
            line-height: 1.6;
        }
        .hero-section {
            background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
            color: white;
            position: relative;
            overflow: hidden;
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0.1;
            background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.4'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        }
        h1, h2, h3, h4 {
            font-family: 'Noto Serif SC', serif;
            font-weight: 700;
        }
        .card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-radius: 0.75rem;
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .step-number {
            width: 2.5rem;
            height: 2.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 9999px;
            font-weight: bold;
        }
        .divider {
            height: 1px;
            background: linear-gradient(to right, transparent, #cbd5e1, transparent);
        }
        .image-container {
            border-radius: 0.5rem;
            overflow: hidden;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        }
        .image-container img {
            transition: transform 0.3s ease;
        }
        .image-container:hover img {
            transform: scale(1.02);
        }
        .mermaid {
            background-color: white;
            padding: 1.5rem;
            border-radius: 0.75rem;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            margin: 2rem 0;
        }
        .feature-icon {
            width: 3rem;
            height: 3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 0.75rem;
        }
        .note-box {
            border-left: 4px solid #3b82f6;
            background-color: #eff6ff;
            padding: 1rem;
            border-radius: 0 0.5rem 0.5rem 0;
        }
        .warning-box {
            border-left: 4px solid #f59e0b;
            background-color: #fffbeb;
            padding: 1rem;
            border-radius: 0 0.5rem 0.5rem 0;
        }
    </style>
</head>
<body>
    <!-- Hero Section -->
    <section class="hero-section py-20 px-6">
        <div class="hero-pattern"></div>
        <div class="container mx-auto hero-content">
            <div class="max-w-4xl mx-auto text-center">
                <div class="inline-block px-4 py-2 mb-6 bg-white bg-opacity-20 rounded-full backdrop-filter backdrop-blur-sm">
                    <span class="text-sm font-semibold text-white">数据库技术指南</span>
                </div>
                <h1 class="text-4xl md:text-6xl font-bold mb-6 leading-tight">Oracle数据库安装与使用</h1>
                <p class="text-xl md:text-2xl text-blue-100 max-w-3xl mx-auto mb-10">全球领先的关系数据库管理系统，为企业级应用提供强大支持</p>
                <div class="flex flex-wrap justify-center gap-4">
                    <a href="#intro" class="px-8 py-3 bg-white text-blue-700 font-semibold rounded-full hover:bg-blue-50 transition duration-300 flex items-center">
                        <i class="fas fa-info-circle mr-2"></i> 了解Oracle
                    </a>
                    <a href="#download" class="px-8 py-3 bg-blue-700 text-white font-semibold rounded-full hover:bg-blue-800 transition duration-300 flex items-center">
                        <i class="fas fa-download mr-2"></i> 下载安装
                    </a>
                </div>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <div class="container mx-auto px-6 py-12">
        <!-- Introduction Section -->
        <section id="intro" class="mb-20">
            <div class="max-w-4xl mx-auto">
                <div class="flex items-center mb-8">
                    <div class="mr-4 step-number bg-blue-100 text-blue-700">1</div>
                    <h2 class="text-3xl font-bold text-gray-800">Oracle简介</h2>
                </div>
                <div class="bg-white card p-8">
                    <div class="flex flex-col md:flex-row gap-8">
                        <div class="md:w-2/3">
                            <p class="mb-6 text-lg text-gray-700">Oracle公司（甲骨文）是全球最大的信息管理软件及服务供应商，成立于1977年，总部位于美国加州Redwood shore，面向全球开放Oracle认证。</p>
                            <p class="mb-6 text-lg text-gray-700">Oracle开发的关系数据库产品因性能卓越而闻名，Oracle数据库产品为财富排行榜上的前1000家公司所采用，许多大型网站也选用了Oracle系统，是世界最好的数据库产品。</p>
                            <div class="note-box mb-6">
                                <p class="text-blue-800 font-medium">有趣的是，Oracle在英语里还是"神谕"的意思，意为"替神说话的"，寓指Oracle公司的发展目标和决心地位。</p>
                            </div>
                        </div>
                        <div class="md:w-1/3 flex items-center justify-center">
                            <div class="feature-icon bg-blue-100 text-blue-700 text-2xl">
                                <i class="fas fa-database"></i>
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Oracle Ecosystem Diagram -->
                <div class="mt-12">
                    <div class="mermaid">
                        graph TD
                            A[Oracle数据库] --> B[关系型数据库]
                            A --> C[NoSQL数据库]
                            A --> D[内存数据库]
                            A --> E[分布式数据库]
                            B --> F[Oracle Database]
                            C --> G[Oracle NoSQL]
                            D --> H[Oracle TimesTen]
                            E --> I[Oracle RAC]
                            style A fill:#1e3a8a,color:#fff
                            style B fill:#3b82f6,color:#fff
                            style C fill:#3b82f6,color:#fff
                            style D fill:#3b82f6,color:#fff
                            style E fill:#3b82f6,color:#fff
                    </div>
                </div>
            </div>
        </section>

        <!-- Download Section -->
        <section id="download" class="mb-20">
            <div class="max-w-4xl mx-auto">
                <div class="flex items-center mb-8">
                    <div class="mr-4 step-number bg-blue-100 text-blue-700">2</div>
                    <h2 class="text-3xl font-bold text-gray-800">Oracle下载</h2>
                </div>
                <div class="bg-white card p-8">
                    <div class="flex flex-col md:flex-row gap-8 items-center">
                        <div class="md:w-2/3">
                            <h3 class="text-2xl font-semibold mb-4 text-gray-800">Oracle 11g 下载</h3>
                            <p class="mb-6 text-gray-700">Oracle 11g是Oracle数据库的一个稳定版本，适合大多数企业和个人开发者使用。</p>
                            <a href="http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html" target="_blank" class="inline-flex items-center px-6 py-3 bg-blue-600 text-white font-medium rounded-lg hover:bg-blue-700 transition duration-300">
                                <i class="fas fa-external-link-alt mr-2"></i> 前往Oracle官网下载
                            </a>
                            <div class="mt-6 warning-box">
                                <p class="text-yellow-800">注意：下载前需要注册Oracle账号，下载速度可能较慢，建议使用稳定的网络连接。</p>
                            </div>
                        </div>
                        <div class="md:w-1/3">
                            <div class="feature-icon bg-blue-100 text-blue-700 text-2xl">
                                <i class="fas fa-cloud-download-alt"></i>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Installation Section -->
        <section id="installation" class="mb-20">
            <div class="max-w-4xl mx-auto">
                <div class="flex items-center mb-8">
                    <div class="mr-4 step-number bg-blue-100 text-blue-700">3</div>
                    <h2 class="text-3xl font-bold text-gray-800">安装Oracle数据库</h2>
                </div>

                <!-- Step 1 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">1.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">解压缩文件</h3>
                            <p class="mb-6 text-gray-700">将两个压缩包一起选择，鼠标右击 -> 解压文件</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227796151-dc438efa-4140-4f05-9d26-fdd4a9322628.jpeg" alt="解压缩文件" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 2 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">2.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">解压到相同路径</h3>
                            <p class="mb-6 text-gray-700">两者解压到相同的路径中</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227796448-bfd6cfaa-f86d-492e-a6e2-96624c1a4666.jpeg" alt="解压到相同路径" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 3 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">3.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">执行安装文件</h3>
                            <p class="mb-6 text-gray-700">到相应的解压路径上面，找到可执行安装文件【 setup.exe 】双击安装</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227796750-68ab4be9-7752-482c-aa22-7d98a2702893.jpeg" alt="执行安装文件" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 4 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">4.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">配置安全更新</h3>
                            <p class="mb-6 text-gray-700">这步可将自己的电子邮件地址填写进去（也可以不填写，只是收到一些没什么用的邮件而已）。取消下面的"我希望通过My Oracle Support接受安全更新(W)"</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227797235-86bb0a98-de14-4580-a885-ef91c141ca1c.jpeg" alt="配置安全更新" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 5 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">5.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">安全选项</h3>
                            <p class="mb-6 text-gray-700">直接选择默认创建和配置一个数据库(安装完数据库管理软件后，系统会自动创建一个数据库实例)</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227797610-98a8be51-c2bc-4e42-99b4-f43cebb8b0af.jpeg" alt="安全选项" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 6 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">6.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">系统类</h3>
                            <p class="mb-6 text-gray-700">直接选择默认的桌面类就可以了。(若安装到的电脑是，个人笔记本或个人使用的电脑使用此选项)</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227798322-0aa73395-5451-4421-bfed-3ca8fcba9f82.jpeg" alt="系统类" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 7 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">7.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">典型安装</h3>
                            <p class="mb-4 text-gray-700">重要步骤。建议只需要将Oracle基目录更新下，目录路径不要含有中文或其它的特殊字符。全局数据库名可以默认，且口令密码，必须要牢记。</p>
                            <div class="warning-box mb-4">
                                <p class="text-yellow-800">密码输入时，有提示警告，不符合Oracle建议时不用管。(因Oracle建议的密码规则比较麻烦，必须是大写字母加小写字母加数字，而且必须是8位以上)</p>
                            </div>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227798789-d283fd1f-7447-41b4-a8b7-7d3379c4d22d.jpeg" alt="典型安装" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 8 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">8.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">简单密码确认</h3>
                            <p class="mb-6 text-gray-700">若输入的口令短小简单，安装时会提示如下。直接确认Y继续安装就是了。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227799056-8cf53a12-d0d5-4f1a-8b3a-0a93e27bec08.jpeg" alt="简单密码确认" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 9 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">9.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">先决条件检查</h3>
                            <p class="mb-4 text-gray-700">安装程序会检查软硬件系统是否满足，安装此Oracle版本的最低要求。直接下一步就OK了。</p>
                            <div class="warning-box mb-4">
                                <p class="text-yellow-800 font-medium">部分电脑在这里会检测失败，如果检测失败忽略即可。</p>
                            </div>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227799383-b5679d01-e9bb-45bb-84d2-0644aa027cd4.jpeg" alt="先决条件检查" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 10 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">10.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">概要</h3>
                            <p class="mb-6 text-gray-700">安装前的一些相关选择配置信息。可以保存成文件或不保存文件直接点完成即可。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227799771-22733bc6-8691-4713-9813-a8cfcc4d0fbc.jpeg" alt="概要" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 11 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">11.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">安装产品</h3>
                            <p class="mb-6 text-gray-700">自动进行，不用管。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227800106-06d4c2c7-05ab-4176-8051-c270dcdd2540.jpeg" alt="安装产品" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 12 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">12.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">实例数据库创建</h3>
                            <p class="mb-6 text-gray-700">数据库管理软件文件及dbms文件安装完后，会自动创建安装一个实例数据库默认前面的orcl名称的数据库。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227800470-d508f8b2-ef58-4099-817e-3be1be3a6fd5.jpeg" alt="实例数据库创建" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 13 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">13.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">解锁账户</h3>
                            <p class="mb-6 text-gray-700">实例数据库创建完成了，系统默认是把所有账户都锁定不可用了(除sys和system账户可用外)，建议点右边的口令管理，将常用的scott账户解锁并输入密码。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227800879-aba5b905-47b5-4927-bfc5-9e5132f24544.jpeg" alt="解锁账户" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 14 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">14.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">解锁scott账户</h3>
                            <p class="mb-4 text-gray-700">解锁scott账户，去掉前面的绿色小勾，输入密码tiger。同样可以输入平常用的短小的密码，不必非得按oracle建议的8位以上大小写加数字。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227801415-098a5908-8d51-4630-917e-ce9cd00ca364.jpeg" alt="解锁scott账户" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 15 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">15.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">密码不符合规则提示</h3>
                            <p class="mb-6 text-gray-700">同样，密码不符合规则会提示。不用管它，继续Y即可。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227801886-b19a40f4-b41d-4e2f-afca-68ee3ff5d4b6.jpeg" alt="密码不符合规则提示" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 16 -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">16.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">安装成功</h3>
                            <p class="mb-6 text-gray-700">安装成功，完成即可。</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/jpeg/21449790/1651227802169-16a2f056-3595-47b2-9c72-2cd85603384e.jpeg" alt="安装成功" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- Step 17 -->
                <div class="bg-white card p-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">17.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">测试Oracle是否安装成功</h3>
                            <div class="mb-6">
                                <h4 class="text-lg font-semibold mb-2 text-gray-700">1. 打开SqlPlus</h4>
                                <div class="grid grid-cols-1 md:grid-cols-2 gap-4 mb-4">
                                    <div class="image-container">
                                        <img src="https://cdn.nlark.com/yuque/0/2022/png/21449790/1651227802543-7ba444dc-c23b-4e1d-857f-35597c2b6191.png" alt="打开SqlPlus" class="w-full h-auto">
                                    </div>
                                    <div class="image-container">
                                        <img src="https://cdn.nlark.com/yuque/0/2022/png/21449790/1651227802922-2663f49c-71e4-4c95-9b9c-8ef4225197b5.png" alt="SqlPlus界面" class="w-full h-auto">
                                    </div>
                                </div>
                                
                                <h4 class="text-lg font-semibold mb-2 text-gray-700">2. 登录测试</h4>
                                <p class="mb-4 text-gray-700">用户名输入：scott，口令输入：tiger，出现如下信息说明Oracle安装成功</p>
                                <div class="image-container">
                                    <img src="https://cdn.nlark.com/yuque/0/2022/png/21449790/1651227803202-a8e2a110-e73c-4be5-9a03-19e9564c6b54.png" alt="登录成功" class="w-full h-auto">
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- PLSQL Developer Section -->
        <section id="plsql" class="mb-20">
            <div class="max-w-4xl mx-auto">
                <div class="flex items-center mb-8">
                    <div class="mr-4 step-number bg-blue-100 text-blue-700">4</div>
                    <h2 class="text-3xl font-bold text-gray-800">安装Oracle客户端PLSQL Developer</h2>
                </div>

                <!-- PLSQL Installation -->
                <div class="bg-white card p-8 mb-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">1.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">安装PLSQL Developer</h3>
                            <p class="mb-6 text-gray-700">解压下面的压缩包安装即可</p>
                            <div class="image-container">
                                <img src="https://cdn.nlark.com/yuque/0/2022/png/21449790/1651227803540-80cc0a1b-812c-43dc-bcce-59389d2a91f3.png" alt="PLSQL Developer安装" class="w-full h-auto">
                            </div>
                        </div>
                    </div>
                </div>

                <!-- PLSQL Configuration -->
                <div class="bg-white card p-8">
                    <div class="flex items-start">
                        <div class="mr-4 mt-1 text-blue-700 font-bold text-xl">2.</div>
                        <div>
                            <h3 class="text-xl font-semibold mb-4 text-gray-800">PLSQL Developer链接Oracle数据库</h3>
                            
                            <div class="mb-6">
                                <h4 class="text-lg font-semibold mb-2 text-gray-700">1. 初始界面</h4>
                                <p class="mb-4 text-gray-700">安装成功后打开PLSQL Developer，如下：选择cancel</p>
                                <div class="image-container">
                                    <img src="https://cdn.nlark.com/yuque/0/2022/png/21449790/1651227803910-8de361e8-9092-4317-a3dc-040b936dcd3a.png" alt="PLSQL初始界面" class="w-full h-auto">
                                </div>
                            </div>
                            
                            <div class="mb-6">
                                <h4 class="text-lg font-semibold mb-2 text-gray-700">2. 配置连接</h4>
                                <p class="mb-4 text-gray-700">进入主界面后选择，tools → preferences → 如下图</p>
                                <div class="image-container">
                                    <img src="https://cdn.nlark.com/yuque/0/2022/png/21449790/1651227804284-edecf89f-2fde-47b3-ab15-8e61318aade7.png" alt="PLSQL配置界面" class="w-full h-auto">
                                </div>
                            </div>
                            
                            <div class="mb-6">
                                <h4 class="text-lg font-semibold mb-2 text-gray-700">3. 配置规则</h4>
                                <p class="mb-4 text-gray-700">在登录历史中配置用户名密码及要链接的数据库，配置规则如下：</p>
                                <div class="note-box mb-4">
                                    <p class="text-blue-800 font-medium">数据库用户名/数据库密码@数据库名称</p>
                                </div>
                                <p class="mb-4 text-gray-700">例如：要配置scott用户</p>
                                <div class="note-box mb-4">
                                    <p class="text-blue-800 font-medium">scott/tiger@orcl</p>
                                </div>
                                
                                <p class="mb-4 text-gray-700">配置完成后点击ok保存，然后退出工具重新打开，选择刚才配置的用户登录即可，如下图：</p>
                                <div class="image-container">
                                    <img src="https://cdn.nlark.com/yuque/0/2022/png/21449790/1651227804764-b82d80e2-b31d-42cb-9c44-bfa8754fdb35.png" alt="PLSQL登录界面" class="w-full h-auto">
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </section>
    </div>

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